Lore

The Road of Sacrifices leads from the Undead Settlement to the Cathedral of the Deep, where Aldrich, Devourer of Gods once resided. The path is known as the Road of Sacrifices because residents of the Undead Settlement were led to the Cathedral of the Deep to be devoured by Aldrich.

Theories

Title of theory.

Sources

Butcher Knife
Butcher's knife with an oddly large blade wielded by the madwoman haunting the Road of Sacrifices.
Squarely-landed hits restore HP.
Back in the Undead Settlement, the woman acquired a taste for human flesh, of which she took glee in partaking.